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Transportation medicine

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https://www.readbyqxmd.com/read/29792163/different-patterns-of-inflammatory-and-angiogenic-factors-are-associated-with-peritoneal-small-solute-transport-and-peritoneal-protein-clearance-in-peritoneal-dialysis-patients
#1
Yuanyuan Shi, Hao Yan, Jiangzi Yuan, He Zhang, Jiaying Huang, Zhaohui Ni, Jiaqi Qian, Wei Fang
BACKGROUND: Both peritoneal small solute transport and peritoneal protein clearance are closely linked to outcomes in peritoneal dialysis (PD) patients. However, the associated factors of these two components are not fully understood so far. This study aimed to investigate the association between a panel of systemic and peritoneal inflammatory and angiogenic factors and peritoneal solute transport properties. METHODS: Stable PD patients in PD center of Renji Hospital, School of Medicine, Shanghai Jiao Tong University were enrolled in present study...
May 23, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29789638/human-carbonic-anhydrase-8-aav8-gene-therapy-inhibits-nerve-growth-factor-signaling-producing-prolonged-analgesia-and-anti-hyperalgesia-in-mice
#2
Gerald Z Zhuang, Udita Upadhyay, Xiaoying Tong, Yuan Kang, Diana M Erasso, Eugene S Fu, Konstantinos D Sarantopoulos, Eden R Martin, Tim Wiltshire, Luda Diatchenko, Shad B Smith, William Maixner, Roy C Levitt
Carbonic anhydrase-8 (Car8; murine gene symbol) is an allosteric inhibitor of inositol trisphosphate receptor-1 (ITPR1), which regulates neuronal intracellular calcium release. We previously reported that wild-type Car8 overexpression corrects the baseline allodynia and hyperalgesia associated with calcium dysregulation in the waddle (wdl) mouse due to a 19 bp deletion in exon 8 of the Car8 gene. In this report, we provide preliminary evidence that overexpression of the human wild-type ortholog of Car8 (CA8 WT ), but not the reported CA8 S100P loss-of-function mutation (CA8 MT ), inhibits nerve growth factor (NGF)-induced phosphorylation of ITPR1, TrkA (NGF high-affinity receptor), and ITPR1-mediated cytoplasmic free calcium release in vitro...
April 24, 2018: Gene Therapy
https://www.readbyqxmd.com/read/29788882/impact-of-drug-metabolism-pharmacokinetics-and-their-relevance-upon-taxus-based-drug-development
#3
Da-Cheng Hao, Guang-Bo Ge, Ping Wang, Ling Yang
Drug metabolism and pharmacokinetic (DMPK) studies of Taxus natural products, their semi-synthetic derivatives and analogs are indispensable in the optimization of lead compounds and clinical therapy. These studies can lead to development of new drug entities with improved absorption, distribution, metabolism, excretion and toxicity (ADME/T) profiles. To date, there have been no comprehensive reviews of the DMPK features of Taxus derived medicinal compounds.Natural and semi-synthetic taxanes may cause and could be affected by drug-drug interaction (DDI)...
May 22, 2018: Current Drug Metabolism
https://www.readbyqxmd.com/read/29783934/the-impact-of-pharmacokinetic-gene-profiles-across-human-cancers
#4
Michael T Zimmermann, Terry M Therneau, Jean-Pierre A Kocher
BACKGROUND: The right drug to the right patient at the right time is one of the ideals of Individualized Medicine (IM) and remains one of the most compelling promises of the post-genomic age. The addition of genomic information is expected to increase the precision of an individual patient's treatment, resulting in improved outcomes. While pilot studies have been encouraging, key aspects of interpreting tumor genomics information, such as somatic activation of drug transport or metabolism, have not been systematically evaluated...
May 21, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29777253/translation-inhibition-corrects-aberrant-localization-of-mutant-alanine-glyoxylate-aminotransferase-possible-therapeutic-approach-for-hyperoxaluria
#5
Ruth Belostotsky, Roman Lyakhovetsky, Michael Y Sherman, Fanny Shkedy, Shimrit Tzvi-Behr, Roi Bar, Bernd Hoppe, Björn Reusch, Bodo B Beck, Yaacov Frishberg
Primary hyperoxaluria type 1 is a severe kidney stone disease caused by abnormalities of the peroxisomal alanine-glyoxylate aminotransferase (AGT). The most frequent mutation G170R results in aberrant mitochondrial localization of the active enzyme. To evaluate the population of peroxisome-localized AGT, we developed a quantitative Glow-AGT assay based on the self-assembly split-GFP approach and used it to identify drugs that can correct mislocalization of the mutant protein. In line with previous reports, the Glow-AGT assay showed that mitochondrial transport inhibitors DECA and monensin increased peroxisomal localization of the mutant...
May 18, 2018: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/29774767/the-role-of-hepatic-antioxidant-capacity-and-hepatobiliary-transporter-in-liver-injury-induced-by-isopsoralen-in-zebrafish-larvae
#6
Y Zhang, Y Zhang, J Li, Y Chen, L Han, Q He, J Chu, K Liu
Isopsoralen is the main component of the Chinese medicine psoralen, which has antitumour activity and can be used for the treatment of osteoporosis. However, the mechanism behind its hepatotoxicity has not yet been elucidated. In this study, the hepatotoxicity of isopsoralen was investigated using zebrafish. Isopsoralen treatment groups of 25, 50 and 100 μM were established. The mortality, liver morphology changes, levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST), liver histopathology and mRNA levels of liver injury-related genes in zebrafish larvae were measured...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29768999/essentials-and-perspectives-of-computational-modelling-assistance-for-cns-oriented-nanoparticle-based-drug-delivery-systems
#7
Joanna Kisała, Kinga I Heclik, Krzysztof Pogocki, Dariusz Pogocki
The blood-brain barrier (BBB) is a complex system controlling two-way substances traffic between circulatory (cardiovascular) system and central nervous system (CNS). It is almost perfectly crafted to regulate brain homeostasis and to permit selective transport of molecules that are essential for brain function. For potential drug candidates, the CNS-oriented neuropharmaceuticals as well as for those of primary targets in the periphery, the extent to which a substance in the circulation gains access to the CNS seems crucial...
May 16, 2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29768250/metabolic-regulation-of-synaptic-activity
#8
Sergei V Fedorovich, Tatyana V Waseem
Brain tissue is bioenergetically expensive. In humans, it composes approximately 2% of body weight and accounts for approximately 20% of calorie consumption. The brain consumes energy mostly for ion and neurotransmitter transport, a process that occurs primarily in synapses. Therefore, synapses are expensive for any living creature who has brain. In many brain diseases, synapses are damaged earlier than neurons start dying. Synapses may be considered as vulnerable sites on a neuron. Ischemic stroke, an acute disturbance of blood flow in the brain, is an example of a metabolic disease that affects synapses...
May 16, 2018: Reviews in the Neurosciences
https://www.readbyqxmd.com/read/29766266/-syncope-and-fitness-to-drive
#9
REVIEW
Hermann H Klein
Although medical students are rarely instructed in traffic medicine in Germany, they are obliged to inform their patients about their fitness to drive after having become a medical doctor. This article gives an overview on the fitness to drive for patients with syncope by referring to the driving license regulation and the current guidelines released by the department of traffic. The driving license regulation distinguishes between group 1 and group 2 drivers. Group 1 drivers drive vehicles with a total weight less than 3...
May 15, 2018: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/29765861/mitochondrial-metabolism-mediated-regulation-of-adult-neurogenesis
#10
REVIEW
Ruth Beckervordersandforth
The life-long generation of new neurons from radial glia-like neural stem cells (NSCs) is achieved through a stereotypic developmental sequence that requires precise regulatory mechanisms to prevent exhaustion or uncontrolled growth of the stem cell pool. Cellular metabolism is the new kid on the block of adult neurogenesis research and the identity of stage-specific metabolic programs and their impact on neurogenesis turns out to be an emerging research topic in the field. Mitochondrial metabolism is best known for energy production but it contains a great deal more...
November 9, 2017: Brain Plasticity
https://www.readbyqxmd.com/read/29765532/chemopreventive-activity-of-celastrol-in-drug-resistant-human-colon-carcinoma-cell-cultures
#11
Helena Moreira, Anna Szyjka, Kazimierz Gąsiorowski
Celastrol (tripterine) a pentacyclic triterpenoid extracted from the roots of Tripterygium wilfordii Hook f., exhibits potent antioxidant and anti-inflammatory activity and also exerts important anti-cancer effects, as induction of apoptosis and lowering the level of drug resistance of several cancers. Increased level of cellular resistance to cytostatic drugs is typical for colorectal cancers, and largely determines the failure of chemotherapy for this tumor. The purpose of our research was to evaluate the chemopreventive effect of celastrol on cultures of colon cancer cells resistant to doxorubicin (LOVO/DX)...
April 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/29765322/therapeutic-potential-of-ginsenosides-as-an-adjuvant-treatment-for-diabetes
#12
REVIEW
Litao Bai, Jialiang Gao, Fan Wei, Jing Zhao, Danwei Wang, Junping Wei
Ginseng, one of the oldest traditional Chinese medicinal herbs, has been used widely in China and Asia for thousands of years. Ginsenosides extracted from ginseng, which is derived from the roots and rhizomes of Panax ginseng C. A. Meyer, have been used in China as an adjuvant in the treatment of diabetes mellitus. Owing to the technical complexity of ginsenoside production, the total ginsenosides are generally extracted. Accumulating evidence has shown that ginsenosides exert antidiabetic effects. In vivo and in vitro tests revealed the potential of ginsenoside Rg1, Rg3, Rg5, Rb1, Rb2, Rb3, compound K, Rk1, Re, ginseng total saponins, malonyl ginsenosides, Rd, Rh2, F2, protopanaxadiol (PPD) and protopanaxatriol (PPT)-type saponins to treat diabetes and its complications, including type 1 diabetes mellitus, type 2 diabetes mellitus, diabetic nephropathy, diabetic cognitive dysfunction, type 2 diabetes mellitus with fatty liver disease, diabetic cerebral infarction, diabetic cardiomyopathy, and diabetic erectile dysfunction...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29751701/-changes-of-transport-sugar-content-in-different-organs-of-rehmannia-glutinosa
#13
Dong-Hui Wang, Na Liao, Peng Sun, Xue-Qi Ji, Xian-En Li, Min-Jian Qin
Raffinose series oligosaccharides are the transport and storage sugars of many plants, Rehmannia glutinosa is one of the commonly used Chinese herbal medicines, medicinal parts ist he roots. Root and tuber of R. glutinosa contains stachyose, raffinose and other oligosaccharides, but the study about the process of growth and development of other organs in the non-structural changes in sugar content is rare.In this study, leaves, stems and roots of R. glutinosa were used as materials to analyze the diurnal variation and the changes of sugar content of sucrose, raffinose and stachyose in different organs of R...
April 2018: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29750923/ion-channel-modulators-in-cystic-fibrosis
#14
REVIEW
Martina Gentzsch, Marcus A Mall
Cystic fibrosis (CF) is caused by mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene and remains one of the most common life-shortening genetic diseases affecting the lung and other organs. CFTR functions as a cAMP-dependent anion channel that transports chloride and bicarbonate across epithelial surfaces and disruption of these ion transport processes plays a central role in the pathogenesis of CF. These findings provided the rationale for pharmacological modulation of ion transport, either by targeting mutant CFTR or alternative ion channels that can compensate for CFTR dysfunction, as a promising therapeutic approach...
May 8, 2018: Chest
https://www.readbyqxmd.com/read/29749379/clinically-relevant-mutations-in-the-abcg2-transporter-uncovered-by-genetic-analysis-linked-to-erythrocyte-membrane-protein-expression
#15
Boglárka Zámbó, Zsuzsa Bartos, Orsolya Mózner, Edit Szabó, György Várady, Gyula Poór, Márton Pálinkás, Hajnalka Andrikovics, Tamás Hegedűs, László Homolya, Balázs Sarkadi
The ABCG2 membrane protein is a key xeno- and endobiotic transporter, modulating the absorption and metabolism of pharmacological agents and causing multidrug resistance in cancer. ABCG2 is also involved in uric acid elimination and its impaired function is causative in gout. Analysis of ABCG2 expression in the erythrocyte membranes of healthy volunteers and gout patients showed an enrichment of lower expression levels in the patients. By genetic screening based on protein expression, we found a relatively frequent, novel ABCG2 mutation (ABCG2-M71V), which, according to cellular expression studies, causes reduced protein expression, although with preserved transporter capability...
May 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29745273/metabolic-fate-and-subchronic-biological-effects-of-core-shell-structured-fe-3-o-4-sio-2-nh-2-nanoparticles
#16
Yueli Chen, Jinquan Li, Zhongxue Yuan, Jianghua Feng, Zhong Chen
Core-shell structured Fe3 O4 @SiO2 -NH2 nanoparticles (Fe@Si-NPs) demonstrated outstanding potentials in drug targeting and delivery and medical imaging. However, they have limited clinical applications due to unknown chronic bio-effects and potential bio-related risks. In this study, the subchronic biological effects and metabolic fate of 20 nm Fe@Si-NPs in Sprague-Dawley rats in 12 weeks were investigated by the biochemical assay and NMR-based metabonomic analysis using an intravenous model. Biofluids (plasma and urine) analysis provided the transportation, absorption, and excretion information of Fe@Si-NPs...
May 10, 2018: Nanotoxicology
https://www.readbyqxmd.com/read/29743054/australian-integrative-oncology-services-a-mixed-method-study-exploring-the-views-of-cancer-survivors
#17
Jennifer Hunter, Jane Ussher, Chloe Parton, Andrew Kellett, Caroline Smith, Geoff Delaney, Eleanor Oyston
BACKGROUND: The significant use of traditional and complementary medicine (T&CM) by cancer survivors is well documented. The aim of this study was to explore cancer survivors' views on integrating T&CM services with conventional cancer care. METHOD: A mixed-method study design with an emphasis on qualitative methodology was used to conduct and analyse four focus group interviews and an on-line survey. Purposive sampling recruited 33 cancer survivors and caregivers from Arabic, Vietnamese, Chinese and Anglo-European Australian backgrounds who participated in one of four focus group interviews, and 121 cancer survivors who responded to an on-line survey...
May 9, 2018: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/29742964/efficient-generation-of-cynomolgus-monkey-induced-pluripotent-stem-cell-derived-intestinal-organoids-with-pharmacokinetic-functions
#18
Daichi Onozato, Misaki Yamashita, Ryosuke Fukuyama, Takumi Akagawa, Yuriko Kida, Akiko Koeda, Tadahiro Hashita, Takahiro Iwao, Tamihide Matsunaga
In preclinical studies, the cynomolgus monkey (CM) model is frequently used to predict the pharmacokinetics of drugs in the human small intestine, because of its evolutionary closeness to humans. Intestinal organoids that mimic the intestinal tissue have attracted attention in regenerative medicine and drug development. In this study, we generated intestinal organoids from CM induced pluripotent stem (CMiPS) cells and analysed their pharmacokinetic functions. CMiPS cells were induced into the hindgut; then, the cells were seeded on microfabricated culture vessel plates to form spheroids...
May 10, 2018: Stem Cells and Development
https://www.readbyqxmd.com/read/29738009/serotonin-and-serotonin-transporter-levels-in-autistic-children
#19
Haidar A Abdulamir, Omar F Abdul-Rasheed, Emad A Abdulghani
OBJECTIVES: To assess the possible correlation between serotonin and serotonin transporter (SERT) with the autism severity and investigate the association between these parameters in autistic children to assess their possible role for diagnosis of autism severity. METHODS: A comparative cross-sectional study was carried out in the Chemistry and Biochemistry Department, College of Medicine, Al-Nahrain University, Baghdad, Iraq while the samples were taken from 60 male autistic children recruited to the Department of Pediatrics at Al-Sader Hospital, Baghdad, Iraq between November 2014 amd April 2015...
May 2018: Saudi Medical Journal
https://www.readbyqxmd.com/read/29737293/effect-of-sedative-drugs-with-vitamin-b6-combined-with-other-b-vitamins-in-the-anti-stress-of-captive-amur-tiger
#20
Qiao Zhenglei, Ma Jianzhang
In order to reduce the stress response of animals in animal transportation, it is often used to feed the animals with sedative drugs combined with compound vitamin B. In this article, we will randomly divide 16 amur tiger into the control group and the experimental group. The drug intervention is carried out in the experimental group. The sedative is mainly dexmedetomidine, combined with compound vitamin B, while control group did not feed the drug. The urine of two groups of individuals was collected before and after transportation and the cortisol content in urine was determined by radioimmunoassay as an indication of stress...
May 2018: Pakistan Journal of Pharmaceutical Sciences
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